نتایج جستجو برای: idiopathic hypogonadotropic hypogonadism
تعداد نتایج: 66457 فیلتر نتایج به سال:
A patient with idiopathic hypogonadotropic hypogonadism (IHH) had an apparently balanced reciprocal translocation involving chromosomes 13 and 16 [t(13;16)(q14.11;q24)]. The patient's father has the same chromosomal translocation with no apparent physical abnormalities. The role of the chromosomal translocation in this patient is discussed.
Isolated hypogonadotropic hypogonadism is characterized by impaired gonadotropin release in the context of normal anatomical and functional anterior pituitary function. The conditions usually responsible for hypogonadotropic hypogonadism are: pituitary adenoma, neoplastic metastasis, granulomatous processes, lymphocitary hypophysitis, histiocytosis X, hemochromatosis, vascular pathologies. We p...
Aims Isolated gonadotropin-releasing hormone (GnRH) deficiency (IGD) is characterized by delayed or absent sexual development associated with low gonadotropin and sex steroid levels. IGD is classified as Kallmann syndrome (KS) with anosmia and normosmic idiopathic hypogonadotropic hypogonadism (nIHH). This study was undertaken to investigate clinical and endocrinological profiles in patients wi...
BACKGROUND Functional hypothalamic amenorrhea is a reversible form of gonadotropin-releasing hormone (GnRH) deficiency commonly triggered by stressors such as excessive exercise, nutritional deficits, or psychological distress. Women vary in their susceptibility to inhibition of the reproductive axis by such stressors, but it is unknown whether this variability reflects a genetic predisposition...
BACKGROUND Men with isolated gonadotropin-releasing hormone (GnRH) deficiency typically present with an absence of pubertal development. We describe an adult-onset form of idiopathic hypogonadotropic hypogonadism that develops after puberty. METHODS We studied 10 men (age, 27 to 57 years) with normal sexual maturation, idiopathic infertility, sexual dysfunction, low serum testosterone concent...
PURPOSE To evaluate the frequency of allelic variant Trp8Arg/Ile15Thr in the luteinizing hormone beta-subunit gene in a Brazilian population of healthy subjects and in patients with hypogonadotropic hypogonadism. SUBJECTS AND METHODS Two hundred and two adults (115 women) with normal sexual function and 48 patients (24 women) with hypogonadotropic hypogonadism underwent a molecular study of t...
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